What a criminal justice system represents, warden, a lord, broadcast

I believe the answer is:

law and order

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'what a criminal justice system represents' is the definition.
I don't know anything about this answer so I cannot tell whether this works.

'warden a lord broadcast' is the wordplay.
'broadcast' indicates anagramming the letters.
'warden'+'a'+'lord'='wardenalord'
'wardenalord' is an anagram of 'LAW-AND-ORDER'.

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(Other definitions for law and order that I've seen before include "civilised behaviour" , "Politician's phrase relating to a safe society" , "strong measures to suppress crime" .)

I've seen this clue in The Telegraph.

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